The prevalence of hypertension among people aged 60 and above in China is 49%, with 1 in 2 people having hypertension. Hypertension in the elderly often coexists with a variety of diseases and complications: it is often complicated by coronary heart disease, heart failure, cerebrovascular disease, renal insufficiency, diabetes, etc. The incidence of stroke is much higher in our population than in the Western population. Clinical features of geriatric hypertension: 1. Increased systolic blood pressure and increased pulse pressure: Simple systolic hypertension in the elderly accounts for 60% of hypertension. Pulse pressure in the elderly is significantly and positively correlated with total mortality and cardiovascular events. 2, blood pressure fluctuation: blood pressure morning peak phenomenon increased, hypertension combined with postural hypotension and postprandial hypotension increased. The elderly ISH with diabetes, hypovolemia, application of diuretics, vasodilators or psychotropic drugs are prone to postural hypotension. Blood pressure fluctuates greatly in the elderly, which affects the therapeutic effect. When blood pressure fluctuates sharply, it can significantly increase the risk of cardiovascular events. 3, common blood pressure circadian rhythm abnormalities: the high incidence of blood pressure circadian rhythm abnormalities, as evidenced by a nighttime blood pressure drop of <10% (non-spoon type) or more than 20% (super-spoon type), leading to an increased risk of target organ damage to the heart, brain, kidneys and other target organs. 4, Increased hypertension in white coats. 5, increased pseudohypertension, referring to the phenomenon that the blood pressure value measured by the cuff method is higher than the intra-arterial pressure measurement, which can occur in normotensive or hypertensive elderly. The above clinical features of hypertension are associated with increased stiffness of the atherosclerotic vessel wall and decreased function of the blood pressure regulation center in the elderly.